Bertazzoni Legacy DW24PR Code E3: 90-Minute heating timeout

What E3 means

On Bertazzoni DW24PR and DW18PR legacy dishwashers, E3 means the water temperature could not reach its target within 90 minutes. The checks point at the heater, the thermistor and the control board. The code is described as one that appeared in factory mode, so most owners will rarely see it. If it does show, the wash may finish with water that never got hot enough.

Common causes of E3

Heating element not warming the water
Thermistor reading the water temperature incorrectly
Control board not driving the heater circuit
Very cold incoming water making the heat-up run past its limit

✓ One safe check you can try

1. Press Cancel and let the dishwasher drain. 2. Open the door and feel whether the dishes and the inside are warm after a cycle. 3. Run the hot tap at the sink until it is warm, then start one normal cycle. 4. If E3 shows again, stop using the dishwasher and call us.

! Why to stop there

Heating problems can come from the element, the sensor or the board, and only a measurement tells which.
The heater is wired to line voltage and sits under the tub, which is not a place to poke around.
Dishes that are never heated properly may come out with grease still on them.
A written price comes first, and the repair carries our 30-day workmanship warranty.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Dishwasher codes

E1Bertazzoni Legacy 24-Inch Dishwasher Code E1: Water inlet too slow FFBertazzoni Professional Dishwasher Code FF: Water inlet system failure E4Bertazzoni Legacy 24-Inch Dishwasher Code E4: Overflow in the base HIBertazzoni Heritage Dishwasher Code HI: High voltage failure E6Bertazzoni Legacy DW24PR Code E6: Thermal sensor open LsbBertazzoni DW24PR Code Lsb: Rinse aid level low E7Bertazzoni Legacy DW18PR Code E7: Thermal sensor short E8Bertazzoni DW24XT Code E8: Distributary valve orientation failure

E3E3 questions

Why do I see E3 so rarely?

This code is described as one that appeared in factory mode on the DW24PR and DW18PR. In normal home use it is unusual, so seeing it means the machine really did struggle to heat water.

Does E3 mean the dishwasher is dangerous?

Not by itself. It means the heat-up took 90 minutes without reaching the target. Still, because a heater is involved, we would rather you stop using the machine until it has been checked.

Will running hot water first help?

It can make a heating cycle easier, but it will not fix a failed element or sensor. If E3 returns after a cycle with warm incoming water, call us for a proper test.